PHYSICS 165 CHAPTER 4 EXAM
UPDATED QUESTIONS AND CORRECT
ANSWERS.
Orbital magnetic moment - ANS The magnetic field that is perpendicular to the plane of the
motion
Spin magnetic moment - ANS The magnetic field is also perpendicular to motion of spinning
Magnetic field lines have ... and ... .... - ANS North and south poles,
Each little magnet is called - ANS Magnetic dipole or magnetic domain
When magnetic domains align the object it acts like a - ANS Magnet with north and south
poles becoming magnetized
Lines of force is also called - ANS Lines of flux or magnetic field
Force fields created when magnetic dipoles align to create magnet - ANS Lines of force
The stinger the magnet the more ... .. ...which is greater ... ... - ANS The more lines of flux,
greater flux density
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, Lines of force flow from _______ to ______ outside of the magnet - ANS north and south
Lines of force flow from _______ to ______ inside of the magnet - ANS South to North
Magnetic fields strength is measured in - ANS Gauss and Tesla
3 principle types of magnets - ANS Natural- earth
artificial- compass
electromagnetic- wire wrapped around iron core
Magnetic laws - ANS Repulsion attraction- alike repels, unalike attract
Inverse square- force is inversely proportional to distance between 2 magnetic fields
Magnetic poles- all magnetic shave north and south poles
Ferromagnetic - ANS Easily magnetized, strongly attracted
Ex: iron
Paramagnetic - ANS Slightly attracted to magnets
Ex: aluminum
Diamagnetic - ANS Weakly repelled by magnets, cannot be artificially magnetized
Ex: water, lead
Non magnetic - ANS Unaffected when brought to magnetic field
Ex: wood, glass, rubber, plastic
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
UPDATED QUESTIONS AND CORRECT
ANSWERS.
Orbital magnetic moment - ANS The magnetic field that is perpendicular to the plane of the
motion
Spin magnetic moment - ANS The magnetic field is also perpendicular to motion of spinning
Magnetic field lines have ... and ... .... - ANS North and south poles,
Each little magnet is called - ANS Magnetic dipole or magnetic domain
When magnetic domains align the object it acts like a - ANS Magnet with north and south
poles becoming magnetized
Lines of force is also called - ANS Lines of flux or magnetic field
Force fields created when magnetic dipoles align to create magnet - ANS Lines of force
The stinger the magnet the more ... .. ...which is greater ... ... - ANS The more lines of flux,
greater flux density
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, Lines of force flow from _______ to ______ outside of the magnet - ANS north and south
Lines of force flow from _______ to ______ inside of the magnet - ANS South to North
Magnetic fields strength is measured in - ANS Gauss and Tesla
3 principle types of magnets - ANS Natural- earth
artificial- compass
electromagnetic- wire wrapped around iron core
Magnetic laws - ANS Repulsion attraction- alike repels, unalike attract
Inverse square- force is inversely proportional to distance between 2 magnetic fields
Magnetic poles- all magnetic shave north and south poles
Ferromagnetic - ANS Easily magnetized, strongly attracted
Ex: iron
Paramagnetic - ANS Slightly attracted to magnets
Ex: aluminum
Diamagnetic - ANS Weakly repelled by magnets, cannot be artificially magnetized
Ex: water, lead
Non magnetic - ANS Unaffected when brought to magnetic field
Ex: wood, glass, rubber, plastic
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
